78228306486268 has 6 divisors (see below), whose sum is σ = 136899536350976. Its totient is φ = 39114153243132.

The previous prime is 78228306486241. The next prime is 78228306486311. The reversal of 78228306486268 is 86268460382287.

It is a super-2 number, since 2×78228306486268² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78228306486197 and 78228306486206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9778538310780 + ... + 9778538310787.

Almost surely, 2^{78228306486268} is an apocalyptic number.

It is an amenable number.

78228306486268 is a deficient number, since it is larger than the sum of its proper divisors (58671229864708).

78228306486268 is a wasteful number, since it uses less digits than its factorization.

78228306486268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19557076621571 (or 19557076621569 counting only the distinct ones).

The product of its (nonzero) digits is 594542592, while the sum is 70.

The spelling of 78228306486268 in words is "seventy-eight trillion, two hundred twenty-eight billion, three hundred six million, four hundred eighty-six thousand, two hundred sixty-eight".